CN111086353A

CN111086353A - Integral type wheel hub vibration/noise reduction structure

Info

Publication number: CN111086353A
Application number: CN202010077247.9A
Authority: CN
Inventors: 蔡翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-25
Filing date: 2020-01-25
Publication date: 2020-05-01

Abstract

The invention provides an integrated hub damping and noise reducing structure which comprises an elastic module body, wherein the elastic module body is wrapped on the outer surface of a hub in a self-adaptive manner to form a composite material structure, sound absorbing cavities are formed in the inner wall of the elastic module body and the surface of the hub, a sound absorbing structure is arranged on the outer wall of the elastic module body, the elastic module body is made of an elastic material and is integrally formed, the hub is wrapped by the elasticity of the material, and the module is prevented from slipping and is rapidly installed; due to the design of the sound-absorbing cavity, the contact surface with the hub is reduced, the elasticity of the contact surface is increased, the structure of the bulge and the inclined plane in the hub is self-adaptive, and meanwhile, the noise in the hub can be absorbed; in addition, the design of the sound absorption structure can change a cavity structure after the connection of the tire and the hub, regular spaces are changed into irregular spaces, the transmission of sound waves and vibration is damaged, irregular asymmetric design is adopted in a large amount, and the shock absorption and shock absorption performance is strengthened at one end of a hub spoke.

Description

Integral type wheel hub vibration/noise reduction structure

Technical Field

The invention belongs to the technical field of tire accessories, and particularly relates to an integrated hub damping and noise reducing structure.

Background

The noise of the tire is mainly generated by the friction between the tire and the ground in the driving process of an automobile, because the closed space after the tire and the hub are combined cannot effectively reduce the noise and vibration conduction after being inflated, the smooth outer wall and the thickness of the hub are limited, and the limited wall thickness cannot play a role in noise reduction and shock absorption, particularly when the automobile runs at high speed, the high-frequency friction and impact can add huge noise and vibration, so that the tire noise becomes one of the main noise and vibration sources of the automobile; as long as the driving tire moves all can there be the noise, this is inevitable, and the structure of current reduction child noise includes sets up the damping ring of making an uproar that falls of wheel on the wheel, and it can be when the wheel takes place to vibrate, produces the damping power consumption of interface through rubbing between damping ring and the wheel, can play the effect of restraining the radial and horizontal modal vibration of wheel partly to obtain good noise reduction.

The damping ring of making an uproar falls in wheel mainly comprises the ring body that has the breach, and the ring body breach department is equipped with elastic joint ring body cross section and is circular, and the damping ring has specific elasticity and surface finish, installs on the wheel that opens the semicircular groove, and when the wheel takes place the vibration, the damping ring produced interface damping power consumption with it friction to play fine damping noise reduction effect. The damping ring is made of round steel with small radius, so the damping ring occupies small space and has low weight. The damping ring is subjected to special surface treatment and matched with the wheel groove to have a specific friction coefficient, the damping ring can generate optimal interface damping under the friction coefficient, and the surface-treated damping ring has good wear resistance and corrosion resistance. The damping ring is installed by simply processing the wheel, a semicircular groove is formed in the inner side of the wheel , the damping ring is installed on the wheel through the elasticity of the damping ring, then the damping ring is connected through an elastic connecting piece, the diameter of the outer ring of the connected damping ring is smaller than the diameter of the inner ring of the semicircular groove of the wheel, and the damping ring cannot fall off from the semicircular groove of the wheel.

The wheel noise reduction damping ring has the following disadvantages: the current automobile wheel hub inner structure is complicated, install above-mentioned damping ring and need process wheel hub, except processing the degree of difficulty problem, still will destroy original wheel hub structural rigidity, will lead to the safety problem, and the wheel hub cross-section is not simple plane, the design has noise reduction structures such as arch and inclined plane, this installation space that will restrict the damping ring, it is very poor to lead to the universal performance, thereby lead to the damping ring to need the wheel hub of specific design just can install, lead to the cost high in the middle of, install the difficulty additional, thereby can not use widely on a large scale.

Secondly, most of the structures for reducing the tire noise in the prior art are designed as non-integrated structures and are splicing structures; the structure of the hub cannot be well adapted.

Chinese patent application No. 201420394670.1, which discloses a sound-insulating inner ring of a sound-insulating hub; the acoustic transducer comprises a sound absorption hole, a body and mounting holes, wherein the body is a circular ring body with a trapezoidal section, the outer width of the circular ring body is wider than the inner width of the circular ring body, the two sides of the circular ring body are symmetrical, and the inner wall of the body ring body, close to one port, is symmetrically provided with four mounting holes at equal intervals on the axis of the ring body; the structure is a unitary structure, but it is provided with mounting holes, resulting in the hub requiring a specific mounting structure when installed.

Disclosure of Invention

The invention provides an integrated hub damping and noise reducing structure, which solves the defects of the hub noise reducing structure in the prior art.

During the running process of the wheel, the friction and the impact between the tire and the ground inevitably generate noise and vibration which belong to the category of energy, however, the energy is harmful to the vehicle, various noise reduction structures are designed on the outer side of the tire to reduce the conduction of the energy into the tire, structures such as a step inclined plane and the like are also designed on the outer wall of the hub to inhibit the conduction of the energy to the hub, but because the pressure cavity formed after the hub is combined with the tire amplifies vibration and noise at a certain frequency and band, thereby generating a drumming effect, in order to control the weight of the wheel hub and improve the power conversion ratio of the automobile, the wall thickness of the wheel hub is also limited, the hub itself also produces vibrations and noise when impacted by sound waves and vibration energy, and in a sealed pressure environment, noise and vibrations when the wheel is traveling can only be controlled and reduced by obstructing and destroying the conduction of energy.

The technical scheme of the invention is realized as follows:

integral type wheel hub vibration/noise reduction structure, including integrated into one piece's elasticity module body, the elasticity module body forms the combined material structure through self elasticity self-adaptation parcel on wheel hub's surface, and the effectual vibrations that reduce and absorption wheel hub self produced, the vibrations that separation tire and road surface contact produced hang the route with the automobile body transmission to the car, and the elasticity module body is connected with the wheel hub surface and realizes quick assembly disassembly, just the inner wall of elasticity module body is formed with the wheel hub surface and inhales the sound cavity to change the cavity structure after tire and wheel hub combine, be provided with on the outer wall of elasticity module body and cut off the sound structure of inhaling of vibrations and noise effect.

The elastic module body is integrally formed by adopting an elastic material, and the self-adaptive deformation capacity of the elastic module body is utilized to adapt to various wheel hubs in various shapes, so that the universal property is high; the cavity behind elasticity module body combines tire and wheel hub becomes irregular cavity, changes the conduction of the inside sound wave of cavity, absorbs the sound wave simultaneously.

Preferably, integrated into one piece has the sand grip of interval arrangement on the inner wall of elasticity module body, the sand grip is connected with the contact of wheel hub outer wall, forms between the inner wall of wheel hub outer wall and elasticity module body inhale the sound cavity.

Preferably, inhale the sound structure including being triangular arrangement set up in the sound insulation lug at elasticity module body outer wall middle part.

Preferably, the sound-absorbing structure further includes shock-absorbing combs disposed on both sides of the sound-insulating projection.

Preferably, the sound absorbing structure further comprises a transverse sound absorbing groove and a longitudinal sound absorbing groove which are arranged on two sides of the damping flow comb.

Preferably, the elastic module body is of an integrally formed solid structure.

Preferably, an air cavity is arranged inside the elastic module body and is connected with an inflation valve.

According to the invention, on the premise of not changing the structure of the existing hub, the elastic module body is utilized to realize rapid disassembly and assembly and fixation, and meanwhile, the flexibility brought by elasticity can be adaptive to the shapes and structures of the outer walls of various hubs, so that good universality and matching performance are realized, the elastic binding force enables the outer wall of the hub and the module to form a composite material state, vibration conduction is effectively inhibited, and the noise reduction unit designed on the outer side of the noise reduction and damping module is added, so that the conduction of noise in the tire is effectively reduced and damaged, and the problems of tire noise and vibration of various types of hubs are universally solved.

In summary, the invention has the advantages that:

the integrated hub damping and noise reducing structure is characterized in that an elastic module body which is integrally formed is made of elastic materials, the hub is wrapped by the elasticity of the materials, the module is prevented from slipping, the module is unfolded during installation, and is elastically contracted and reset after being placed in the hub, meanwhile, the module is fixed to the outer wall of the hub through elasticity, the elasticity can overcome the reaction force caused by the maximum centrifugal force and sudden braking in the highest rotation process of a wheel through calculation, and the elastic structure can automatically adapt to bulges and inclined planes in the hub, so that the universality of the module is realized, the design of a sound-absorbing cavity reduces the contact surface with the hub, the elasticity of the contact surface is increased, the bulge and inclined plane structure in the hub is self-adapted, and the sufficient wrapping performance is obtained while the adaptability to various hubs is; meanwhile, the noise in the hub can be absorbed; in addition, the design of the sound absorption structure can destroy the transmission of sound waves and vibration, irregular asymmetric design is adopted in a large amount, and the shock absorption and damping performance is enhanced at one end of the hub spoke.

This application can reduce the vehicle and hang the burden, improves the wheel hub bearing life-span, and quiet ease when promoting the vehicle and traveling.

This application has changed the glossy structure of wheel hub outer wall and has formed the combined material structure, and the metal vibrations that produce when restraining metal wheel hub to travel when absorbing and destroying the noise block the conduction of noise and vibrations from the root then to really reach the shock attenuation effect of making an uproar.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an integrated hub damping and noise reducing structure according to the present invention.

Fig. 2 is a partial cross-sectional view of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-2, integral type wheel hub vibration/noise reduction structure, including integrated into one piece's elasticity module body 1, the elasticity module body forms the combined material structure through self elasticity self-adaptation parcel on wheel hub's surface, with wheel hub surface connection and realize quick assembly disassembly, but and various types of wheel hub of self-adaptation, the inner wall of elasticity module body and wheel hub surface are formed with inhales sound cavity 2, be provided with on the outer wall of elasticity module body and inhale the sound structure.

The elastic module body is made of elastic materials, the self-adaptive deformation capacity of the elastic module body is utilized, the elastic structure can automatically adapt to bulges and inclined planes in the wheel hub and adapt to various wheel hubs in various shapes, and the universality is high; and elastic material parcel can prevent effectively that the module from skidding the phenomenon to appear, struts the module when the installation, puts into wheel hub back self elastic shrinkage and resets, fixes the module to the wheel hub outer wall through elasticity simultaneously, and elasticity can overcome the highest rotatory in-process biggest centrifugal force of wheel and suddenly braking through the calculation and lead to the reaction force.

The elastic module body is characterized in that convex strips 3 which are arranged at intervals are integrally formed on the inner wall of the elastic module body, the convex strips are in contact connection with the outer wall of the hub, the sound-absorbing cavity is formed between the outer wall of the hub and the inner wall of the elastic module body, the contact surface with the hub is reduced due to the design of the sound-absorbing cavity, the elasticity of the contact surface is increased, the structure of a bulge and an inclined surface in the hub is self-adapted, and the sufficient wrapping performance is obtained while the hub is adaptive to various hubs; and simultaneously, the noise in the hub can be absorbed.

Inhale the sound structure including being the triangle arrange set up in the syllable-dividing lug 4 at elasticity module body outer wall middle part still including set up in damping flow comb 5 on the lug both sides gives sound insulation, inhale the sound structure still including setting up in damping flow comb both sides on horizontal sound absorption groove 6 and vertically inhale sound groove 7, inhale the transmission that the design of sound structure can destroy sound wave and vibrations, irregular asymmetric design will be adopted in a large number to strengthen inhaling at wheel hub banner one end and inhale shake performance.

Particularly, the elastic module body is of an integrally formed solid structure; or an air cavity is arranged in the elastic module body and connected with an inflation valve. The inflation valve is a reversing inflation valve or other known structures, and the structure can be used as a spare tire after the elastic module body is inflated when the outer tire of the tire is damaged.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. Integral type wheel hub vibration/noise reduction structure, including integrated into one piece's elasticity module body, the elasticity module body forms the combined material structure through self elasticity self-adaptation parcel on wheel hub's surface, with wheel hub outer surface connection and realize quick assembly disassembly, just the inner wall of elasticity module body is formed with the wheel hub surface and inhales the sound cavity to change the cavity structure after tire and wheel hub combine, be provided with on the outer wall of elasticity module body and cut off the sound structure of inhaling of vibrations and noise effect.

2. The integrated hub shock absorbing and noise reducing structure of claim 1, wherein: the elastic module is characterized in that raised lines arranged at intervals are integrally formed on the inner wall of the elastic module body and are in contact connection with the outer wall of the hub, and the sound absorption cavity is formed between the outer wall of the hub and the inner wall of the elastic module body.

3. The integrated hub shock absorbing and noise reducing structure of claim 1, wherein: inhale the sound structure including being the triangle-shaped range set up in the sound insulation lug at elasticity module body outer wall middle part.

4. The integrated hub shock absorbing and noise reducing structure of claim 3, wherein: inhale sound structure still including set up in give sound insulation the shock attenuation on the lug both sides comb that flows.

5. The integrated hub shock absorbing and noise reducing structure of claim 4, wherein: the sound absorbing structure further comprises a transverse sound absorbing groove and a longitudinal sound absorbing groove which are arranged on two sides of the damping flow comb.

6. The integrated hub shock absorbing and noise reducing structure of claim 1, wherein: the elastic module body is of an integrally formed solid structure.

7. The integrated hub shock absorbing and noise reducing structure of claim 1, wherein: an air cavity is arranged in the elastic module body and connected with an inflation valve.